Morphological modulation of CoFe-based metal organic frameworks for oxygen evolution reaction

Xianbiao Hou; Jian Zhou; Xiujuan Xu; Xingkun Wang; Shucong Zhang; Huanlei Wang; Minghua Huang

Catalysis Communications (May 2022)

Morphological modulation of CoFe-based metal organic frameworks for oxygen evolution reaction

Xianbiao Hou,
Jian Zhou,
Xiujuan Xu,
Xingkun Wang,
Shucong Zhang,
Huanlei Wang,
Minghua Huang

Affiliations

Xianbiao Hou: School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
Jian Zhou: School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
Xiujuan Xu: School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
Xingkun Wang: School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
Shucong Zhang: School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
Huanlei Wang: School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
Minghua Huang: Corresponding author.; School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China

Journal volume & issue: Vol. 165
p. 106445

Abstract

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The modulation of morphological structure associated with the change of metal composition within metal organic framework (MOF) is a facile and effective strategy to accelerate the charge transfer for enhancing the catalytic activity towards oxygen evolution reaction (OER). Here, we realized the morphological change of MOF by manipulating the Co composition within bimetallic CoxFe1-x-MOF. Impressively, the CoxFe1-x-MOFs with the one-dimensional nanorod array structure promoted the reaction kinetics of the catalysts. The optimized Co0.8Fe0.2-MOF composition showed a low overpotential of 237 mV at 10 mA/cm2 and a small Tafel slope of 36.3 mV/dec, which are superior than those of commercially RuO2 electrocatalysts.

Published in Catalysis Communications

ISSN: 1566-7367 (Print); 1873-3905 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/catalysis-communications

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